If you are using a 9 to 10-year-old Android phone, it is better to replace it, otherwise, it will not be possible to use WhatsApp from October 24.
Yes, indeed WhatsApp is ending support for many older Android phones from October 24th.
After October 24, WhatsApp will be available only on phones running Android 5.0 or later operating versions.
According to WhatsApp’s FAQ page, WhatsApp can currently be used on Android 4.1 or later operating systems, but from October 24, 2023, the messaging app will only be supported on Android 5.0 or later versions. will be provided